CBSE Class 7 Social Science Geography Quiz on Air

Which type of heat transfer is actually minimized when using a thermo flask?

• Radiation

• Convection

• Conduction

• All the above

Most polluted river in the world is?

• Yamuna

• Chenab

• Cavery

• Ganga

Which is the most important layer of the atmosphere?

• Thermosphere

• Troposphere

• None of these

• Mesosphere

What do you mean by weather?

• Incoming solar energy

• All condition of the atmosphere

• Both a and b

• None of these

Pollution of water is responsible for?

• Oil refineries

• All

• Paper factories

• Sugar mills

Ozone layer is found in:

• Stratosphere

• Thermosphere

• Mesosphere

• Troposphere

The standard unit of measuring temperature is?

• Celsius

• Kelvin

• Meter

• Fahrenheit

In which layer do all weather phenomena occur?

• Thermosphere

• Mesosphere

• Troposphere

• Stratosphere

A wind is named after the?

• Direction from which it blows

• Weight it has

• Place from which it blows

• Area it covers

Which of the following gases protects us from harmful sun rays?

• All of these

• Ozone

• Nitrogen

• Carbon dioxide